Young schoolteacher Charles Edward Chipping (Robert Donat) imposes strict discipline on his young charges at a Victorian-era English public school, becoming a fearsome presence on the campus grounds. But the love of spirited young suffragette Katherine Ellis (Greer Garson) brings the Latin instructor out of his shell and makes him a beloved campus institution into the 20th century and through the shattering violence of World War I. The film is based on the best-selling novel by James Hilton.
Answer:
Brown algae and dinoflagellates.
Explanation: In a phylogenetic tree, two species are considered as most closely related if they share a more common ancestor than the others. The nodes of tree represent the common ancestor, while the tips of branches represent species originated from that ancestor
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0%Confidence Score
80%Confidence Score
68%Confidence Score
From Keplers discovery, scientists were also able to infer that the closer a satellite is to an object, the stronger the force of attraction, hence it must travel faster in order to maintain orbit. Relying on this formula, we are able to see that the velocity required for orbit is equal to the square root of the distance from the object to the center of the Earth times the acceleration due to gravity at that distance. So if we wanted to put a satellite in a circular orbit at 500 km above the surface (what scientists would call a Low Earth Orbit LEO), it would need a speed of ((6.67 x 10-11 * 6.0 x 1024)/(6900000))1/2 or 7615.77 m/s. So really, a satellites ability to maintain its orbit comes down to a balance between two factors: its velocity (or the speed at which it would travel in a straight line), and the gravitational pull between the satellite and the planet it orbits. If youd like more info on satellites, check out these articles: Orbital Objects List of satellites in geostationary orbit Weve also recorded an episode of Astronomy Cast about the space shuttle.
